Stolen Thermalite Pivotal Seatpost. Thermalite is proprietary material made with Nylon 66 base w/ 50% longer glass fiber infusion. Thermalite posts are 30% lighter than the current Alloy posts on the market. - Dupont Nylon 66 with 50% longer glass fiber infusion - 1/3 lighter than any alloy post on the market - Compatible with all Pivotal seats - Weight: 2.8oz.

The Tuner pivotal post features a 220mm length with grooves evenly spaced every 15mm for cut lines or seat height indication. - 6061 alloy forged post - Weight: 4.6oz - Clamp Style: Pivotal